what is my variable?

[exo]

If I have a say string control, is there something like a property node that outputs a word that indicates that the control is a string?

[smercurio_fc]

"ClassName"


Message Edited by smercurio_fc on 05-12-2008 11:20 AM

[exo]

Thanks. The people on this board often know more than tech support.

Next question. Both floating point and integers have a class name as digital. Is it possible to differentiate one from the other?

[exo]

Property Display Format

[smercurio_fc]

You basically need to look at the Type Descriptor information which you can get by converting the control to a variant, or you can use the Flatten To Sting function, with it changed to "Convert 7.x Data". Or, the easiest way is to use the OpenG function Get TDEnum From Data.

[exo]

Thanks again.

[smercurio_fc]

---

@exo wrote:
Property Display Format

---

I'm not sure what you're referring to here. The format of how you display something does not affect the underlying datatype.

[exo]

I was pointing out a way of differentiating what the control or indicator is. I have to pass a variable to a Call Library Function. The function writes to a file but I have to maintain the format, string, integer, floating point.
In the framework (dll to window's users) I can make the variable a void * but I still need to tell the framework what type of variable so that it can call the right routine.

[smercurio_fc]

Errr...  ok. Well, that OpenG function returns an enum, which I guess you can just treat as an integer. I assume that will work for you.

[Matthew_Kelton]

You need to be careful about assuming data type based on Display Format.  It can't distinguish data type.  It just tells you how it is displayed.  You can have a DBL that has a display format of %d or an integer with a display format of %f.  Even if you don't have any unusual display formats, it still can't tell you a DBL from a SGL or a U8 from an I32.


Message Edited by Matthew Kelton on 05-12-2008 11:58 AM